1.

In Bohr series of lines of hydrogen spectrum, the third line from the red end corresponds to which one of the following inter-orbit jumps of the electron for Bohr orbit in an atom of hydrogen?

Answer»

`5to2`
`4to1`
`2to5`
`3TO2`

Solution :The lines at the red END belong to Balmer series. These are obtained for jumps to n = 2 from OUTER orbits (`1^("st")` line from 11 = 3, `2^("nd")` line from n = 4, `3"rd")` line from n = 5).


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